ensure nil is returned in case of nil input (#47)

Author: majst01

api/rest/mapper/mapper.go

@@ -241,10 +241,16 @@ func unwrapInt32(w *wrapperspb.Int32Value) *int32 {
 }
 
 func mustTimestampToTime(ts *timestamppb.Timestamp) *time.Time {
+	if ts == nil {
+		return nil
+	}
 	t := ts.AsTime()
 	return &t
 }
 
 func mustTimeToTimestamp(t *time.Time) *timestamppb.Timestamp {
+	if t == nil {
+		return nil
+	}
 	return timestamppb.New(*t)
 }

api/rest/mapper/mapper_test.go

@@ -97,6 +97,30 @@ func TestTenantMapperRoundtrip(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "nil times",
+			inAndOut: &v1.Tenant{
+				Meta: &v1.Meta{
+					Id:          "1",
+					Kind:        "tenant",
+					Apiversion:  "1",
+					Version:     99,
+					CreatedTime: nil,
+					UpdatedTime: nil,
+				},
+				Name:        "tnt",
+				Description: "tnt is a test tenant",
+				IAMConfig: &v1.IAMConfig{
+					IssuerConfig: &v1.IssuerConfig{
+						URL:      "https://oidc.myissuer.com",
+						ClientID: "47abcdef12",
+					},
+					IDMConfig: &v1.IDMConfig{
+						IDMType: "ldap",
+					},
+				},
+			},
+		},
 	}
 	for _, tt := range tests {
 		tt := tt

go.mod

@@ -23,7 +23,7 @@ require (
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.7.0
-	github.com/testcontainers/testcontainers-go v0.10.0
+	github.com/testcontainers/testcontainers-go v0.11.0
 	go.uber.org/zap v1.17.0
 	golang.org/x/net v0.0.0-20210525063256-abc453219eb5 // indirect
 	google.golang.org/grpc v1.38.0